.banners{
  background-image: url(http://p1.music.126.net/4FC3jEHXAYANuhMQUZo3hg==/109951167194845969.jpg?imageView&blur=40x20);
  background-size: 6000px;
  background-position: center center;
  .banner-wrap{
    position: relative;
    width: 982px;
    margin: 0 auto;
    .banner-item{
      height: 285px;
      margin: 0 auto;
    }
  }
}